Start of a hopeful rhyme about bad weather, and a hint to what the first word of 16-, 24- and 46-Across may describe
All answers having "Start of a hopeful rhyme about bad weather, and a hint to what the first word of 16-, 24- and 46-Across may describe" as clue:
3 Character Answers:
RHO
14 Character Answers:
RAINRAINGOAWAY